Sometimes, groups of people disagree about land. 
Sometimes, groups of people disagree about land. 
Lands might have good water or farms. People may also care about their culture. Sometimes, old rules are not clear. This leads to more fights.
Some groups use soldiers to hold land. They may want to keep a safe space. This is called an occupation.
Rules help keep the world peaceful. A big group called the UN helps. They say lands should stay safe.
It is hard to make everyone happy. We want the world to be fair. Do you think being kind helps? 
A territorial dispute happens when groups disagree about land. They may fight over land, water, or air. 
Sometimes, one group uses soldiers to hold land. This is called an occupation. They might do this to stay safe or to use the land as a tool in a deal. 
There are rules to help keep peace. The UN Charter says states should not use force. They should respect the borders of other states. Some groups take their cases to the International Court of Justice. This is a court that helps solve these big problems. These rules help define what a state is and how it lives in the world.
A territorial dispute happens when political groups cannot agree on borders. This disagreement can involve land, water, or even the airspace above. 
Sometimes, a country might use military forces to hold a region. This is known as an occupied territory. An occupation can be a way to make a claim on land. It can also be a strategic move to create a buffer zone. This helps prevent a rival power from taking control. In other cases, an occupation might be used as a way to punish others. It can even be used as a bargaining chip in deals. 
History shows many ways these lines are drawn. In some places, the borders are not clearly marked. For example, the parties in Kashmir use a Line of Control. This line acts as a de facto international border. It separates Indian-controlled land from Pakistani-controlled land. There is also a Line of Actual Control between India and China. In 1963, China and Pakistan made an agreement. This agreement means they do not claim each other's territory.
International law plays a huge role in these situations. The UN Charter says members must not use force against other states. They must respect the political independence of every state. This is important because a state needs a defined territory to exist. The 1933 Montevideo Convention lists several rules for a state. A state must have a permanent population and a government. It must also have a defined territory and the ability to talk with other states.
These disputes can be very difficult for world peace. They can lead to war or even terrorism. Some states might try to take land through an invasion. This is against international law. To solve these problems, some countries go to the International Court of Justice. For instance, Costa Rica and Nicaragua went to court in 2005. These legal steps help countries work through disagreements. They aim to protect the sovereignty and rights of every nation.
A territorial dispute is a geopolitical phenomenon involving political entities. These entities lack consensus on borders or sovereignty. This disagreement can cover land, water, or even airspace. Disputes often arise because of natural resources. These include rivers, fertile farmland, minerals, or petroleum. Other drivers include culture, religion, and ethnic nationalism. Sometimes, disputes start because of vague language in original treaties. Unclear wording makes it difficult to set precise boundaries.

There are different ways these conflicts manifest. A border dispute or border conflict involves limited territory. In these cases, two or more states contend for the same region. Each state might publish its own maps to include the territory. For example, the Abyei region is contested by South Sudan and Sudan. In a border conflict, the existence of the rival state is not challenged. States like North and South Korea recognize each other's existence. However, they may not recognize the shape of the rival's borders. They simply view the claimed territory as not belonging to the other.

Sometimes, a state uses military forces to control a region. This is called an occupied territory. This region is distinct from the recognized territory of a sovereign state. Occupations can serve several different purposes. A state might maintain occupation to support a territorial claim. It might also be a strategic move to create a buffer zone. This prevents a rival power from gaining control. An occupation can also be used as a means of coercion. This might include punishment or acting as a bargaining chip.
Another concept is irredentism, which relates to wider territorial claims. This often happens when a nation emerges from a larger state. The new state might not control all the territory it proposed. Nationalist movements may view these lands as unredeemed territory. This does not always cause problems between the two governments. Historical conquests also play a role in these claims. Traditionalists may view former colonies of an empire as unredeemed. These claims are based on historical views of what should belong to a nation.

In some regions, borders are not officially demarcated. Instead, parties define a Line of Control. This serves as a de facto international border. For instance, Kashmir is divided by such lines. The Line of Control separates Indian-controlled territory from Pakistani-controlled territory. There is also a Line of Actual Control. This separates Indian-controlled territory from Chinese-controlled territory. In 1963, China and Pakistan signed an agreement. Because of this, they do not claim each other's territory.
Territorial disputes have deep connections to international law. This is because the law is based on the territory of states. The 1933 Montevideo Convention on the Rights and Duties of States is vital here. It defines what a state must possess to be a person of international law. First, a state must have a permanent population. Second, it must have a defined territory. Third, it must have a government. Finally, it must have the capacity to enter relations with other states. Without a defined territory, a state's status is at risk.
Disputes can pose significant threats to international peace. They are a major cause of war and terrorism. States may try to assert sovereignty through invasion. However, international law does not support using force to annex territory. The UN Charter requires members to refrain from the threat or use of force. This protects the territorial integrity and political independence of all states. To resolve these issues, countries often use legal systems. In 2005, Costa Rica and Nicaragua brought a dispute to the International Court of Justice. Such legal actions aim to settle claims through established international rules.
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